38-year-old Kaoru Tera Nishi. A full-time housewife and mother of two, she's entering her 11th year of marriage. Gentle and cheerful, she radiates a warm smile that embraces everyone around her—but behind that smile lies a deep struggle. Due to her highly sensitive body, she climaxes the moment penetration begins, becoming fully satisfied within just one second of insertion. After that, continuing sex is only bearable until her husband reaches his climax. Their timing never matches, leaving an awkward atmosphere each time. Driven by a strong desire to truly enjoy sex, she decided to step forward, seeking an overwhelming intensity that won't fade even after her first orgasm. Witness the new adventure of a premature-ejaculation wife as she, climaxing with just a single thrust, sets off toward an uncharted world of pleasure in pursuit of a second wave of ecstasy.